Do you believe some people do bad things on purpose?

yes there are people who do bad things on purpose.. and there are people who do bad things by mistake, through carelessness. there are all sorts of bad things and all sorts of people doing them.

Hurt people hurt people. There’s usually a reason, or an understandable origin for something irrational, but that doesn’t mean they couldn’t have made a different decision if they wanted to

I like the question and i think maybe it starts off because they were hurt and it can be just accidental bad things, but there's a point where they all get to decide to continue and be bad on purpose or change.

Chances are they were hurt too, but more often than not is no excuse.

Humans are very fragile

Some do it without the intent.
Others, with the purpose.
And a lot of bad doers do it for the sake of other own purposes while the ones hurted are side damage.

Some people are just bad karma. They get their kicks doing bad things, or just don't care about others, just themselves.😔

It's a mix of everything you say, there are bad people who seem to be just born that way

Yes, people that do bad things may have been hurt earlier in their lives. Personally, I can’t condone their negative choices in the aftermath. We can grow or we can succumb to o ur negative experience. It is a choice. If one chooses to be malevolent, then they should suffer the consequences for their actions.

Uh, yes, I know they do.